Cherokee Chat General non-tech Cherokee chat
XJ/MJ/ZJ/WJ
Sponsored by:
Sponsored by: DashLynx

693hp and 777lb tourqe stright six!!!!

Thread Tools
 
Search this Thread
 
Old 12-20-2009, 08:06 PM
  #1  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default 693hp and 777lb tourqe stright six!!!!

anybody get the january 2010 issue of the jp magazine? it has a jeep 4.0 motor that has been stroked and a turbo added to make 690hp and 777lbs of tourqe!!!!!!!!!! and they said it would makee more with bigger injectors? thats just crazy!!!
Old 12-20-2009, 08:09 PM
  #2  
Junior Member
 
$300XJ's Avatar
 
Join Date: Nov 2009
Posts: 53
Likes: 0
Received 0 Likes on 0 Posts
Year: 1988
Model: Cherokee
Engine: 4.0L I6 EFI
Default

Originally Posted by dieselfreek
anybody get the january 2010 issue of the jp magazine? it has a jeep 4.0 motor that has been stroked and a turbo added to make 690hp and 777lbs of tourqe!!!!!!!!!! and they said it would makee more with bigger injectors? thats just crazy!!!

I'm sure there is a laundry list of other parts in that bad boy wonder how much that cost to do .
Old 12-20-2009, 08:34 PM
  #3  
CF Veteran
 
SeriousOffroad's Avatar
 
Join Date: Apr 2008
Posts: 13,952
Likes: 0
Received 15 Likes on 13 Posts
Model: Cherokee
Default

I saw it. Impressive, but unrealistic for most of us.
Old 12-20-2009, 08:43 PM
  #4  
Member
 
Running Free's Avatar
 
Join Date: Nov 2009
Location: Masson, Quebec(the Dark Side) Canada
Posts: 157
Likes: 0
Received 0 Likes on 0 Posts
Year: 1988
Model: Wagoneer
Engine: 4l
Default

Originally Posted by FrankZ
I saw it. Impressive, but unrealistic for most of us.
True. Realistically I would like 10-15 more horses.
Old 12-20-2009, 08:46 PM
  #5  
Banned
 
mcguyver_xj's Avatar
 
Join Date: Oct 2009
Location: West Springfield, MA
Posts: 2,231
Likes: 0
Received 1 Like on 1 Post
Year: 1999
Model: Cherokee
Engine: 4.0
Default

yeah that article was ridiculous, it has roller cam, high volume oil pump, bored throttle body, alum. head, i think it is also bored not just stroked, etc.
Old 12-20-2009, 09:36 PM
  #6  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

Originally Posted by mcguyver_xj
yeah that article was ridiculous, it has roller cam, high volume oil pump, bored throttle body, alum. head, i think it is also bored not just stroked, etc.
yea it is alot of work and money but it is cool to know it could be done!!!
Old 12-20-2009, 10:53 PM
  #7  
-xj
Junior Member
 
-xj's Avatar
 
Join Date: Dec 2009
Location: Lake County, IL
Posts: 91
Likes: 0
Received 0 Likes on 0 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Default

impressive #'s. I would question reliability and streetability too.
Old 12-21-2009, 08:25 AM
  #8  
Senior Member
 
zjrog's Avatar
 
Join Date: Nov 2008
Location: Tooele, UT
Posts: 587
Received 1 Like on 1 Post
Year: 1995
Model: Grand Cherokee
Engine: 4.0
Default

They were quick to mention it will be used for towing and have to live on pump gas. So I would expect lower numbers just to keep it livable. I don't think it had an aluminum head though. Bored .060 over and a 5 liter crank set. Very special and specific block machining, head work, gasket matching of the intake manifold and the throttle body, prototype throttle body, Yella Terror roller rockers. They didn't mention what fuel pressure they were running to get 693hp which maxed out their injectors. And other than add-on fuel/spark management, they were using the stock computer.

They did pull the head after their dyno runs and the pistons and cylinders were in good shape. Turn down the boost and fuel and I can see this thing running 450-500hp reliably.
Old 12-21-2009, 01:29 PM
  #9  
CF Veteran
 
xjrev10's Avatar
 
Join Date: Jan 2009
Location: Britt, MN
Posts: 2,199
Likes: 0
Received 1 Like on 1 Post
Year: 1998
Model: Cherokee
Engine: 4.0
Default

I seen that. They are planing on using that engine for towing. I wonder how much fuel that thing is going to eat.
Old 12-21-2009, 03:43 PM
  #10  
Junior Member
Thread Starter
 
dieselfreek's Avatar
 
Join Date: Oct 2009
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Default

Originally Posted by zjrog
They were quick to mention it will be used for towing and have to live on pump gas. So I would expect lower numbers just to keep it livable. I don't think it had an aluminum head though. Bored .060 over and a 5 liter crank set. Very special and specific block machining, head work, gasket matching of the intake manifold and the throttle body, prototype throttle body, Yella Terror roller rockers. They didn't mention what fuel pressure they were running to get 693hp which maxed out their injectors. And other than add-on fuel/spark management, they were using the stock computer.

They did pull the head after their dyno runs and the pistons and cylinders were in good shape. Turn down the boost and fuel and I can see this thing running 450-500hp reliably.
yea just 400-450hp and 500lbs of tourqe would be retarted and reliable? that would be great!!! still alot of $$$ though
Old 12-21-2009, 06:46 PM
  #11  
Member
 
Running Free's Avatar
 
Join Date: Nov 2009
Location: Masson, Quebec(the Dark Side) Canada
Posts: 157
Likes: 0
Received 0 Likes on 0 Posts
Year: 1988
Model: Wagoneer
Engine: 4l
Default

Did they mention strengthing the frame and/or the drive shafts? With that much power stock will not hold up.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
frado2jr
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
09-14-2015 09:14 AM
Mud-wolf1
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
22
04-30-2014 03:38 PM
99xjlove
XJ Cherokee Write-Ups
1
08-08-2008 05:47 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


Quick Reply: 693hp and 777lb tourqe stright six!!!!



All times are GMT -5. The time now is 07:52 PM.